Ads
related to: heavy duty pulleys for lifting tools and supplies list pdfdozr.com has been visited by 10K+ users in the past month
- Forklifts
All types of forklifts available
Pneumatic, cushion, rough terrain
- Tracked Skid Steers
Compact Track Loaders Skid Steers
Rent 7 Compact Track Loader sizes
- Orlando Equipment Rentals
Rent from 20 companies near Orlando
Over 135 equipment options
- Backhoes
70 hp to 100 hp backhoes available
Find all options available near you
- Forklifts
ebay.com has been visited by 1M+ users in the past month
Search results
Results from the WOW.Com Content Network
A block and tackle [1] [2] or only tackle [3] is a system of two or more pulleys with a rope or cable threaded between them, usually used to lift heavy loads.. The pulleys are assembled to form blocks and then blocks are paired so that one is fixed and one moves with the load.
A rope and pulley system—that is, a block and tackle—is characterised by the use of a single continuous rope to transmit a tension force around one or more pulleys to lift or move a load—the rope may be a light line or a strong cable. This system is included in the list of simple machines identified by Renaissance scientists. [10] [11]
The generally accepted definition of a crane is a machine for lifting and moving heavy objects by means of ropes or cables suspended from a movable arm. As such, a lifting machine that does not use cables, or else provides only vertical and not horizontal movement, cannot strictly be called a 'crane'. Types of crane-like lifting machine include:
Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.
A dumb pulley can lift very large masses a short distance. It consists of two fixed pulleys of unequal radii that are attached to each other and rotate together, a single pulley bearing the load, and an endless rope looped around the pulleys. To avoid slippage, the rope is usually replaced by a chain, and the connected pulleys by sprockets.
A team of riggers design and install the lifting or rolling equipment needed to raise, roll, slide or lift objects such as heavy machinery, structural components, building materials, or large-scale fixtures with a crane, hoist or block and tackle. Rigging comes from rig, to set up or prepare.
Ads
related to: heavy duty pulleys for lifting tools and supplies list pdfdozr.com has been visited by 10K+ users in the past month
ebay.com has been visited by 1M+ users in the past month